/Engine/Source/Runtime/Landscape/Classes/LandscapeProxy.h
Creates a Texture2D for use by this landscape proxy or one of it's components. If OptionalOverrideOuter is not specified, the proxy is used.
[UTexture2D](API\Runtime\Engine\Engine\UTexture2D) * CreateLandscapeTexture ( int32 InSizeX, int32 InSizeY, TextureGroup InLODGroup, ETextureSourceFormat InFormat, [UObject](API\Runtime\CoreUObject\UObject\UObject) * OptionalOverrideOuter, bool bCompress, bool bMipChain ) const